Convert using chain link method 5.3 MIN/m² to N/mm²​

Two cars collide, lock bumpers and move together after the collision.this collision is known as perfectly inelastic collision.

Assuming you're referring to significant figures, none of these answer choices are shown to be zero as significant digits. did you, by chance, forget to add something?

Free body diagram: force of gravity  pointing down, with normal force  with same magnitude, pointing up.in horizontal direction, there is only friction force  , pointing opposite to direction of motion.so the net force comes from friction force (gravity and normal cancel out).===normal force is  friction force is, with  therefore,  andwe have kinematic equationif initial velocity  final velocity acceleration  then16.989 m, or 20 m for one significant figure.